Before I do anything I'm just gonna say that I like Naruto as a franchise more than GV. But since I'm one of the only GV reps... I kind of have to rep for the GV char so they have a fair shot.
I know it says Berserk Trigger Blade, but honestly that's a double edged sword in this case. Normal Blade keeps her sanity, and while not showing anything big brained, it's quite implied that she's pretty good at her job being the pinnacle of Sumeragi's in combat prowess (in this timeline Sumeragi is a worldwide governing power, basically if Germany won WW2, making her like, the literal best in the entire world). While most of this can be attributed to being an Azure Striker based on Gunvolt, and just sheer skill- Blade's mannerisms and what she says make her seem actually pretty smart. In addition, as a person made to replace Gunvolt, who's said to be a prodigy and has fought battles against many different types of foes with many abilities and develop strategies for them (at least one, being Elise that is). It's safe to say Blade should be... somewhat around that level due to what her expectations are. She would also be taught by Asimov, who is also really smart, as he possesses high level calculations to shoot his sniper and can grasp data from previous reports to develop strategies against Copen's various abilities. Speaking of Copen, Blade can beat him despite the guy have 100 years of combat experience.
Berserk Blade however may still keep her raw skill, but is likely not going to have any strategy whatsoever. Against a Naruto Character, at least in this part of the series, strategy is extremely key. However Berserk Blade does have some useful AoE attacks.
For Tobi, since it's in character, are we going with a serious edgy Tobi- or the foolish acting one when he was partnered with Deidera and was fighting the squad that was looking for Sasuke? Assuming that's the case, Tobi is definitely going to play around more than go straight for the Kamui S U C C like with Minato and like, 5 Kage Summit Orange Mask. But at the same time we don't see foolish Tobi do much offensively.
Blade COULD figure out how Kamui kind of works because she fought a passive infinite intangibility person, being Copen, but for Copen, Lightning Attacks pass through his Prevasion (basically Kamui)
So honestly how Blade is gonna win is entirely dependant on how long Tobi is foolish honestly, because once he decides to get serious it's hard to really convince myself that Blade has a chance.
However, Obito's BFR Contact Kamui does give Blade an opportunity to use Crashbolt, which she does do. And since it's instant, Obito making contact with Blade, which is his primary attack- Obito can definitely die to that as he's trying suck. We've seen how he almost got Minato, there was some time for Minato to use Flying Raijin, and even against those two Danzo people there was some time before they were sucked. So Blade COULD get in a Crashbolt and one shot, issue is, Obito is a Naruto character, and Naruto characters are smart.